Mysterious man (The Lazarus Experiment)
From Tardis Wiki, the free Doctor Who reference
A man was an employee of "the other TL I guess" who attended the Lazarus experiment to make himself smaller. He planted egg of doubt in Martha’s mom' mind that she should probably not trust David Tenant being for Martha Jones' backpack. (TV: The Small Experiment ) This led to greyhem’s decision to let another one of the other TL agents track the Doctor's backpack. (Ta—Da )
